Tag Archives: conservation

Frog Release 2015: Celebrating the Program that Paved the Way!

by SPP Program Manager, Kelli Bush

On October 6th, SPP partners from Department of Corrections and The Evergreen State College gathered with representatives from Joint Base Lewis-McChord, Washington Department of Fish and Wildlife, Northwest Trek, and Woodland Park Zoo to release frogs into a Pierce County wetland. This marks the sixth season of the partnership raising federally-threatened Oregon spotted frogs at Cedar Creek Corrections Center (Cedar Creek). It was a joyous occasion as all the partners gathered to release frogs from the three rearing programs.This year Cedar Creek raised 167 frogs and they have raised a total of 879 frogs since the program started in 2009.

frogs in hands

Two Oregon spotted frogs pause for moment before taking a leap into their new home. Photo by Sadie Gilliom.

The program is likely to end while scientists focus on learning more about effective recovery strategies. The likely suspension of the program provides an opportunity to reflect on successes and the many contributors who have dedicated their time to this effort.

MrAnglemeyer

Inmate Technician Mr. Anglemeyer saying goodbye to the frogs. Photo by Sadie Gilliom.

The Oregon Spotted Frog program is the first known prison animal conservation program in the United States. We were able to do this work because several key science partners were convinced that a collaborative program operated in prisons could contribute to species recovery. Special thanks to biologists Jim Lynch and Marc Hays for recognizing the potential of this program.

Since the program started, 13 inmate technicians have received herpetological training and education. SPP inmate technicians have matched the success of programs hosted at zoo facilities. The current technicians, Mr. Boysen and Mr. Anglemyer, have done excellent work!

Boysen-Learning-How-to-Measure-Frogs

Mr. Boysen measuring frogs with Frog and Turtle Coordinator, Sadie Gilliom. Photo by SPP Liaison Ms. Sibley.

Four corrections staff have served as the SPP Liaison for the program. Each of these staff have accepted this work in addition to their regular duties. Thanks to Ms. Sibley, the current program liaison—her time and dedication has been so important to program operation. Also, special thanks to Superintendent Doug Cole for years of enthusiastic support for the program.

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Ms. Sibley, SPP Liaison holding a tomato from the greenhouse. Photo by Joslyn Trivett.

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Superintendent Cole holding an Oregon spotted frog. Photo by Sadie Gilliom.

Six graduate students from Evergreen’s Masters of Environmental Studies program have served as program coordinator. Each student makes important contributions and improvements to the program. Sadie Gilliom is the current program coordinator. Sadie’s program contributions have included science seminars, animal behavior studies, and updated outreach materials.

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Sadie Gilliom releasing a frog. Photo by Kelli Bush.

The Oregon Spotted Frog program at Cedar Creek paved the way for conservation programs in prisons. Through the success of this first program, collaborators proved conservation work can be done well in prisons, and that it can be rewarding for everyone involved.

As a result, new conservation programs have been started in Washington prisons and prisons in other states. SPP partners at Cedar Creek will continue caring for Western pond turtles, another species in need. Now that the frogs are gone we will be keeping an eye out for new science and sustainability programs to introduce to the prison. May these new programs be as successful as the frogs!

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The SPP frog release team. Photo by frog recovery team collaborator.

Flight of the Taylor’s Checkerspot Butterflies

By Christina Stalnaker, SPP Graduate Research Assistant and Roots of Success Coordinator

It was a smaller crowd than usual: two males fluttered around a single female. The lighting was ideal and temperature at just the right degree for a successful pairing. As these butterflies moved in their miniature habitat, two inmate technicians quietly watched to verify if they had a fruitful engagement. We had just entered the greenhouse of the Taylor’s checkerspot butterfly (TCB) captive rearing program at Mission Creek Corrections Center for Women on an early spring morning.

A technician waters flowers that will be placed in TCB habitats for captive rearing. Photo by Christina Stalnaker.

A technician waters flowers that will be placed in TCB habitats for captive rearing. Photo by Christina Stalnaker.

These butterflies were the first of their cohort to eclose, marking the beginning of TCB flight season. Eclosure is one of the final stages of a Taylor’s checkerspot butterfly’s life cycle—it occurs when the butterfly emerges from its cocoon. When the remaining butterflies join them in flight, the technicians will place two females and up to seven males in an insect habitat. Lindsey Hamilton, SPP’s TCB program coordinator, later explained to me that placing so many in the habitat at once ignites the male’s competitive behavior. In the wild, TCB males can be found next to a female pupa, waiting for her to eclose.

Having just emerged from its cocoon, a Taylor's Checkerspot Butterfly patiently waits to feed on honey and take flight for the first time. Photo by Christina Stalnaker.

Having just eclosed (emerged from its cocoon), a Taylor’s Checkerspot Butterfly patiently waits to feed on honey water and take flight for the first time. Photo by Christina Stalnaker.

The technicians had been waiting for us to arrive at the prison’s greenhouse to “process” two more butterflies that had just completed eclosion. The word “process” is far too ordinary to describe this next step in caring for these beautiful, endangered butterflies. Upon emergence, the butterflies patiently wait in their tiny container for at least 24 hours before feeding on honey water and taking flight. I had never handled butterflies before and was pretty nervous. Elizabeth Louie, TCB inmate technician, proudly demonstrated how to handle and process the delicate insects. After she showed me exactly what to do from start to finish, I went on to process the second TCB on my own.

Name?, TCB technician, shows Christina how to "process" an eclosed butterfly. Photo by Lindsey Hamilton,

Elizabeth Louie, TCB inmate technician, shows Christina Stalnaker how to “process” an eclosed butterfly. Photo by Lindsey Hamilton.

First, we recorded the ID number and color code. Next, we removed the mesh caging and the TCB from its insect cup, gently pinch its wings, and closely examined the butterfly to determine if it is a male or female. Mine was female; I could tell by looking at the tip of the abdomen. Females have a pointed tip at the end of their abdomen, whereas males’ are more rounded. After placing her on the balance, we recorded her weight. Swirling the end of a q-tip in the honey water and teasing her proboscis with a paperclip, I set her down and watched as she tasted her first drops of honey as a butterfly.

A Taylor's Checkerspot Butterfly enjoys her first taste of honey water. Photo by Lindsey Hamilton.

A Taylor’s Checkerspot Butterfly enjoys her first taste of honey water. Photo by Lindsey Hamilton.

Once captive rearing is complete and the females finish laying their eggs, the butterflies are released to various South Sound Prairies, like the Glacial Heritage Preserve (photographed below). Here they will live the remainder of their lives, and we hope that they continue to mate and lay eggs in their native habitat to bolster populations directly.

Home of the mysterious Mima Mounds and a critical habitat for Taylor's Checkerspot Butterflies, Glacial Heritage Preserve is managed by many of our partners to ensure they continued survival of these beautiful butterflies. Photo by Christina Stalnaker.

Home of the mysterious Mima Mounds and a critical habitat for Taylor’s Checkerspot Butterflies, Glacial Heritage Preserve is intensively managed by our partners to ensure the continued survival of these beautiful butterflies. Photo by Christina Stalnaker.

Yellow and red flags mark areas of Glacial Heritage Preserve with prairie plants cultivated to enhance TCB habitat. Photo by Christina Stalnaker.

Yellow and red flags mark areas of Glacial Heritage Preserve with prairie plants cultivated to enhance TCB habitat. Photo by Christina Stalnaker.

Impact!

By Samantha Turner,  Butterfly Technician at Mission Creek Corrections Center for Women

I have had a negative impact on many things throughout my life.  As much as I hate to bring to light all my defects, I would have to say that I have had more negative than positive influences in the past.

I find myself today actively changing this pattern.  I strive to do what is right.  Being a part of the Sustainability in Prisons Project’s (SPP) Taylor’s checkerspot butterfly program has given me a huge opportunity to make an impact in a majorly positive way.  I’m learning so much in this program and all the while I find my life is comparable to the cycle of these butterflies’ lives.

I’m shedding my old skin to morph into a new person.

Technician Samantha Turner with a post-diapause larvae bin. Photo by Lindsey Hamilton

Technician Samantha Turner works with a postdiapause larvae bin. Photo by Lindsey Hamilton

Samantha is diligently taking notes in order to track each individual butterfly through it's transformation.  Photo by Jody Becker-Green.

Samantha is diligently taking notes in order to track each individual butterfly through its transformation. Photo by Jody Becker-Green.

This program is fighting to keep the Taylor’s checkerspot alive.  Along with saving their lives, I am fighting to save mine.  So, the SPP program is majorly impacting not only the butterflies’ lives, but my life, and preserving a fighting chance at a future for both of us.

Checkerspot larvae are social insects.  They often follow each other around and eat together.  Photo by inmate technician

Checkerspot larvae are social insects. They often follow each other around and eat together. Photo by inmate technician

Mission Creek Corrections Center for Women butterfly technicians. Photo by Lindsey Hamilton

Mission Creek Corrections Center for Women butterfly technicians posed by a garden where they grow food for the caterpillars. Photo by Lindsey Hamilton

Thank you for this program and I look forward to all the possibilities.

New Turtle & Frog Technicians

We recently hired two new inmate technicians that bring exciting new skills to the Frog and Turtle Program! Inmate technician Anglemyer is an aspiring journalist and inmate technician Boysen has skills in plumbing and mechanics. Both technicians have already proven to be great assets to the frog and turtle program by improving the frog and turtle tank structures. Under their care, the Oregon spotted frog tadpoles are strong and healthy and the western pond turtles are doing great!

Anglemyer and Boysen in the turtle facility.  Photo Credit: Sadie Gilliom

Anglemyer and Boysen in the turtle facility. Photo Credit: Sadie Gilliom

Here is an excerpt from Anglemyer’s cover letter that expresses his dedication to the frog and turtle program:

Seeking Turtles

Goals

With his interest in journalism, we hope to hear more about his experience with the frogs and turtles in the future! We are excited to see what both Anglemyer and Boysen continue to bring to the program!

So Close to a Million Plants We Can Almost Taste It

By Carl Elliott, SPP Conservation Nursery Manager

SPP’s Conservation Nursery continue to thrive at three facilities in Washington State: Stafford Creek Corrections Center, Washington Corrections Center for Women, and Shotwell’s Landing Nursery. Since 2010, we have delivered almost 1,000,000 plants for restoration and habitat enhancement projects on Puget lowland prairies— just 33,000 more plants and we’ll be there! In 2013 we provided 375,000 plugs for prairie projects (see the table below); this is a 14% increase over what we produced the year before. We achieved the increase by adding nursery capacity at Washington Corrections Center for Women, plus increased support from the dedicated prairie restoration crew from Cedar Creek Corrections Center.

This was the first season for nursery production at Washington Corrections Center for Women (WCCW). The crew of five inmate technicians carefully cultivated and shipped 80,000 native prairie plants. They were particularly success at growing blanket flower, Gaillardia aristata, a species that in past years showed low germination and growth rates. The warmer conditions in the propagation hoop houses at WCCW proved to be just the environment that allowed this species to thrive. The Conservation Nursery program benefits enormously from having a new site with an enthusiastic crew of technicians and staff.

WCCW Conservation Nursery Crew loading Gaillardia aristata to be delivered to Joint Base Lewis-McChord. Photo by Bri Morningred.

WCCW Conservation Nursery Crew loading Gaillardia aristata to be delivered to Joint Base Lewis-McChord. Photo by Bri Morningred.

SPP’s Conservation Nursery continues to be a highly collaborative effort. Regional coordination is provided by the Center for Natural Lands Management (CNLM); they bring together managers responsible for prairie habitat to develop detailed restoration and habitat enhancement plans for the Taylor’s checkerspot butterfly. The plants cultivated by SPP’s Conservation Nursery directly benefit the regional stakeholders such as the Washington Department of Fish and Wildlife, the Department of Natural Resources, Joint Base Lewis-McChord, Wolfhaven International, and CNLM. This year we also increased the number of plants going to land managers of prairies in the northern portion of the Puget lowlands, Whidbey and the San Juan Islands; we hope to further those relationships in the future.

The delivery truck is almost full with 400 trays, a load of 39,000 plants. Photo by Bri Morningred

The delivery truck is almost full with 400 trays, a load of 39,000 plants. Photo by Bri Morningred

Though we came up just short of the magic number of 1,000,000 in the 2013, we feel confident that in 2014 we will blow right past that goal, and on to our next milestone!

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Americorps volunteers planting out SPP-grown plugs on the prairie at Glacial Heritage Reserve. Photo by CNLM staff.

Americorps volunteers planting out SPP-grown plugs on the prairie at Glacial Heritage Reserve. Photo by CNLM staff.

Washington Corrections Center for Women Celebrates its SPP programs

by Bri Morningred, SPP Graduate Research Assistant and SPP Coordinator for Washington Corrections Center for Women (WCCW) conservation nursery
photos by Shauna Bittle

Heading out for a tour of SPP programs, passing the gorgeous gardens at WCCW

Heading out for a tour of SPP programs, passing the gorgeous gardens at WCCW

It was a beautiful day in Gig Harbor, WA, perfect for the celebration of the amazing sustainability programs at Washington Correction Center for Women (WCCW). We had prepared for the celebration for months, and it was gratifying to share with partners and the public the many contributions offenders have made to a sustainable prison community.

Restoration and Conservation Coordinator Carl Elliott describes the SPP conservation nursery program at WCCW

Restoration and Conservation Coordinator Carl Elliott describes the SPP conservation nursery program at WCCW

The tour began with introductions from the superintendent of WCCW, Jane Parnell, and from Carri LeRoy and Carl Elliott of SPP. The tour’s first stop was the Conservation Nursery hoop houses at the minimum security campus. Attendees had a chance to watch the conservation nursery crew at work, walk through the carpet of Indian paintbrush (Castilleja hispida) that was beautifully in bloom, and speak with the SPP staff and offender technicians about the conservation nursery program.

Outside and inside of one of the hoop houses in the conservation nursery

Outside and inside of one of the hoop houses in the conservation nursery

Scott Skaggs, Construction and Maintenance Project Supervisor and WCCW manager of the conservation nursery crew, examines a plant showing signs of insect damage

Scott Skaggs, Construction and Maintenance Project Supervisor and WCCW manager of the conservation nursery crew, demonstrates monitoring for insect damage on Indian paintbrush

SPP Graduate Research Assistant Bri Morningred enjoys a moment of success with an inmate technician in the conservation nursery

SPP Graduate Research Assistant Bri Morningred enjoys a high five with an offender technician in the conservation nursery

Indian paintbrush (Castilleja species) thriving in the conservation nursery

Indian paintbrush thriving in the conservation nursery

Next up was the community gardens on the way to medium security campus. This leg of the tour was led by Ed Tharp, who runs the Horticulture Program at WCCW. These gardens are in the courtyard area of the minimum security campus and grow a variety of foods that are harvested for the prison’s kitchen.

Ed Tharp, x Community College, runs the horticultural program at WCCW

Ed Tharp, Tacoma Community College, runs the horticultural program at WCCW

The final tour stop was in the concrete courtyard of the medium security campus. Located next to the education building—which houses the horticulture classroom, the floral program, and many other wonderful educational programs—there are various garden beds  growing onions, garlic, and strawberries.

Enjoying the strawberry beds at WCCW

Enjoying the strawberry beds at WCCW

Assistant Superintendent for WCCW David Flynn, the champion of many SPP programs for the facility, talks to the group about recent activities

Assistant Superintendent for WCCW David Flynn, the champion of many SPP programs for the facility, talks to the group about recent activities

Audrey Lamb, Conservation Assistant at the Center for Natural Lands Management, regards gardens in the close custody area of WCCW

The tour visits gardens in the close custody area of WCCW; Audrey Lamb, Conservation Assistant at the Center for Natural Lands Management, in the foreground

We ended with a poster session and awards ceremony in the gymnasium.  We ate prison-grown salad and strawberries and cupcakes decorated with prairie flowers. Attendees toured  informational tables for many of the sustainable programs at WCCW, including the Prison Pet Partnership Program, Mother Earth Farms, the Horticulture Program, Food Services, the Recycling Program, Sustainability in Prisons Project, and Center for Natural Lands Management.

SPP's Carl Elliott receives prison-grown salad at the poster session

SPP’s Carl Elliott receives fresh garden salad at the poster session

Melissa Johnson (?), publicity and outreach for WCCW, admires the horticultural program display at the poster session

Melissa Johnson, publicity and outreach for WCCW, admires the horticultural program display at the poster session

Best cupcakes ever! Bri Morningred and x bakery collaborated to produce native plant-decorated cupcakes for the celebration. They also tasted great!

Best cupcakes ever! SPP’s Bri Morningred collaborated with a local bakery to produce native plant-decorated cupcakes for the celebration. They also tasted great!

Jane Parnell, Superintendent of WCCW, presents an inmate technician with a certificate of appreciation at an awards ceremony

Jane Parnell, Superintendent of WCCW, presents an offender technician with a certificate of appreciation at an awards ceremony

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An offender technician on the conservation nursery crew shows a certificate of appreciation recognizing her dedication to the program

It was wonderful to get to recognize the amazing things happening at WCCW. The prisons community is  taking great strides toward sustainable living and it is inspiring to work with them towards that goal.

SPP Plant Profile: Roemer’s Fescue (Festuca roemeri)

By Graduate Research Associate Evan Hayduk

Festuca Roemeri, Roemer’s Fescue

This is the first installment in a new series of pieces we are calling our plant profiles. Over the coming months we will highlight one of the 40 species of prairie or riparian plants that are grown at Stafford Creek Correctional Facility. This is intended to give you an idea of what we are growing, focus on the conservation importance of each species, and offer a few fun facts about each species.

Basic Information: Roemer’s fescue is a bluish, gray-green tufted bunch grass that grows from British Columbia (southeastern Vancouver Island and the Gulf Islands), and west of the Cascade Mountains in Washington, Oregon and Northern California. These areas are typically temperate, with maritime influence. Roemer’s fescue grows from sea level to about 2500 ft. The species is also found in thin-soiled windswept shorelines on the islands of the Puget Sound, the Strait of Juan de Fuca and the Straits of Georgia.

Ecological Importance: A foundation species of the prairies of the Pacific Northwest, Roemer’s fescue is predominately found in the glacial outwash prairies of the South Sound and those which have a history of anthropogenic burning.  Its quick growth makes this fescue an effective ground cover, but its bunch grass nature allows for the growth of other important prairie species, including associated species common camas (Camassia quamash), field woodrush (Luzula campestris), spike goldenrod (Solidago spanthulata), early blue violet (Viola adunca) and prairie lupine (Lupinus lepidus) to name a few.

Who is this Roemer guy anyway? Roemer’s fescue is named for Swiss physician, professor of botany and entomologist Johann Jakob Roemer (1762-1819). Roemer was best known for one of the greatest achievements in the history of Swiss entomology, the Genera insectorum Linnaei et Frabricii. Roemer also published the 16th edition of Carlos Linnaeus’ Systema Vegetabilium.

Fescue in the teaching gardens at The Evergreen State CollegeFescue plugs

Fescue plugs

 

Butterfly Rearing Commences at Mission Creek

Butterfly Rearing Commences at Mission Creek

By Graduate Research Associate Dennis Aubrey

The first painted lady butterfly to eclose in the SPP lab at Evergreen.

At long last, the wait is over. After almost a year of preparation, the butterflies have finally arrived! Inmate technicians at Mission Creek Corrections Center for Women (MCCCW) have been caring for painted lady larva for almost three weeks now, and over the weekend they got to watch their first butterflies emerge from their chrysalid.

The painted ladies are being reared as a training surrogate for the endangered Taylor’s checkerspot, which inmates will begin to work with next February. These training butterflies were chosen for their relative hardiness and fast life cycle, which will allow the inmates to go through several complete revolutions before graduating to the much more delicate Taylor’s checkerspot. So far the inmates involved have surpassed expectations in every way.

As the final phases of greenhouse construction were being completed, the student intern on the project, Dennis Aubrey, began rearing painted ladies at the Sustainable Prisons Project (SPP) lab on The Evergreen State College (TESC) campus. This was done to work out the fine details of adapting the Taylor’s checkerspot rearing protocol for use with the painted ladies, and to prepare for training the inmates at the facility. Following this, 200 painted lady eggs were ordered and delivered to MCCCW, where eager inmate technicians began learning how to care for these delicate insects.  Working with butterflies in the SPP lab approximately two weeks ahead of the ones at MCCCW was incomparably helpful in training the inmates effectively.

Inmate butterfly technicians at MCCCW caring for painted lady caterpillars and recording observations

From the time they began, the inmates have been taking very detailed carefully drawn notes, and have been tending to their charges with the patient meticulous care that makes all the difference in rearing projects such as this. At SPP’s frog project at Cedar Creek Corrections Center, the large amount of time inmates dedicate to caring for the endangered Oregon spotted frogs has led to the largest specimens raised at any institution. Last week, when Dennis visited Mission Creek to check on the inmates’ progress, he couldn’t help but notice that the painted lady chrysalids were significantly larger than he was able to produce in the SPP lab. Whether that’s a factor of the light and beneficial conditions in the greenhouse, or is directly attributable to the increased daily care, it’s hard to say. Either way, it’s a great sign of things to come for the future success of the project.

French Film Crew Visits SPP!

By SPP Project Manager Kelli Bush

Filming Oregon spotted frog search

A French documentary crew recently visited Western Washington to film a new episode for their National Geographic series “Guardians of Nature”.  The episode will include segments featuring the Sustainable Prisons Project (SPP) Oregon Spotted Frog Program and riparian forest research conducted by SPP Co-Director Dr. Carri LeRoy.

 

The film crew spent an entire day with the SPP Oregon Spotted Frog Program team.  Filming began at Cedar Creek Correction Center in the morning.  SPP staff and inmates walked the crew through the daily tasks associated with caring for the endangered frogs.  Prison Superintendent Doug Cole shared his thoughts on the benefits of the program from a prison perspective.

SPP Co-Director Carri LeRoy and Project Manager Kelli Bush at West Rocky Prairie

The afternoon was spent at West Rocky Prairie in the greater Olympia area.  West Rocky Prairie is home to a wild population of Oregon spotted frogs.  Dr. Marc Hayes, senior biologist at the Washington Department of Fish and Wildlife, led the group to a wetland location where he netted two juveniles and one adult frog to show the film crew.  He explained how factors such as habitat loss and bull frog predation have led to the decline of the species and discussed current efforts to recover the native population.  The day concluded with summary discussion of the Sustainable Prisons Project and the many benefits of including incarcerated individuals as partners in conservation and sustainability work.

The film crew also spent a day with Dr. Carri LeRoy filming riparian and stream science research on the Hoh River. The Hoh River is a braided gravel stream channel fed from the glaciers of the Olympic Mountains and flowing through densely vegetated temperate rainforest and cottonwood (Populus trichocarpa) gallery forests. Dr. LeRoy’s research on how the genetics of cottonwood trees can influence both other members of the ecological community associated with the trees and the ecosystem-level processes of riparian forests was the focus of the interview. Although it might seem impossible for something as small as a gene to have an effect on a whole ecosystem, there are many examples of the strong organizing power of genes. Genes can influence the insects that live in tree canopies, bird predation and nest building, deer browsing, soil organisms, nutrient cycling, carbon flux, water use and even adjacent stream communities and ecosystem processes. Dr. LeRoy’s “Genes-to-ecosystems” research involves examining the interactions between tree genes, forests and streams through leaf litter fall.

With the dynamic backdrop of ice-blue water and lush vegetation she demonstrated methods for measuring soil respiration (a combination of root respiration and microbial/insect respiration) at the base of a large cottonwood tree. In addition, she placed leaf litter bags of known tree genetics into a small tributary stream of the Hoh River and collected aquatic insects from the cobbly bottom. It was a gorgeous summer day spent in one of the most pristine river systems in Washington State.

The crew has featured beautiful locations all of the world, but this will be the first episode filmed in the US.  The show is primarily carried on stations throughout Europe.  We were thrilled to have the opportunity to share our work with “Guardians of Nature” and an audience on the other side of the planet.  The two segments will likely be available early spring 2012 and will be posted to our website as soon as they are available.

Frog Predator Response Experiment at CCCC

By Graduate Research Associate Sarah Weber

Oregon spotted frog

 

 

 

 

 

 

 

 

The Oregon spotted frogs (OSF) at Cedar Creek Corrections Center (CCCC) are the subjects of a growth comparison study between two separate OSF populations: Black River and Conboy Lake.  Inmates at CCCC are raising the two populations side-by-side in separate tanks, keeping all rearing conditions identical, in order to compare growth rates.  Measurements have been taken throughout the rearing season and will be taken again just prior to release in October at Joint Base Lewis McChord.  The OSF population at Conboy Lake is the only source population that successfully cohabitates with bullfrogs, a primary predator of OSF.  The hypothesis is that OSFs from Conboy Lake are bigger in size, and as a result of that, are faster in their response to predation.  This study will help determine whether or not captive rearing efforts should focus primarily on the Conboy Lake population.

As part of the comparison study, the OSFs predator response instincts were also tested.  Twenty frogs from each population were isolated for a short period of time in a stimulus free environment.  One by one, they were placed in a large plastic tub filled with just enough water to cover their bodies.  Once they relaxed enough to come to the surface and rest with their eyes out of the water, a plastic ball–tethered to stop before impact–was dropped from above, simulating a predator in the wild.  Each individual test is filmed to record the amount of time it takes each frog to react to the “predator”, and also to record response distance in its effort to escape.  The film is reviewed and data logged at the Oregon Zoo.  The data will allow for a parallel test between the Black River and Conboy Lake populations, and also a comparison between OSF rearing institutions, CCCC and Oregon Zoo.

The experiment took place at CCCC under the supervision and guidance of Senior Research Scientist Dr. Marc Hayes and Kyle Tidwell from the Oregon Zoo.  SPP interns Dennis Aubrey and Sarah Weber, and CCCC OSF inmates assisted with noting sex, coloration and tag number as well as taking the measurements and weight of each individual frog in order to identify any size or mass related variation in response. The inmate’s contribution to the predator response experiment and the side by side growth comparison study is integral to development of the OSF captive rearing program.  The rearing season continues at CCCC with inmates raising fat, healthy frogs getting closer to their release date.

Predator response experiment underway!

 

Weighing and measuring frogs